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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | DESCRIPTION | FILES | EXAMPLES | SEE ALSO | COPYRIGHT | COLOPHON |
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mime.types(5) Apple Inc. mime.types(5)
mime.types - mime type description file for cups
The mime.types file defines the recognized file types.
Additional file types are specified in files with the extension
.types in the CUPS configuration directory.
Each line in the mime.types file is a comment, blank, or rule
line. Comment lines start with the # character. Rule lines
start with the MIME media type and are optionally followed by a
series of file recognition rules:
mime/type [ rule ... rule ]
Rules can be extended over multiple lines using the backslash
character (\):
mime/type [ really-really-really-long-rule ... \
rule ]
MIME media types specified by the mime/type field are case-
insensitive and are sorted in ascending alphanumeric order for
the purposes of matching. See the "TYPE MATCHING AND PRIORITY"
section for more information.
The rules may be grouped using parenthesis, joined using "+" for
a logical AND, joined using "," or whitespace for a logical OR,
and negated using "!".
RULES
Rules take two forms - a filename extension by itself and
functions with test values inside parenthesis. The following
functions are available:
match("pattern")
True if the filename matches the given shell wildcard
pattern.
ascii(offset,length)
True if the length bytes starting at offset are valid
printable ASCII (CR, NL, TAB, BS, 32-126).
printable(offset,length)
True if the length bytes starting at offset are printable
8-bit chars (CR, NL, TAB, BS, 32-126, 128-254).
priority(number)
Specifies the relative priority of this MIME media type.
The default priority is 100. Larger values have higher
priority while smaller values have lower priority.
string(offset,"string")
True if the bytes starting at offset are identical to
string.
istring(offset,"string")
True if the bytes starting at offset match string without
respect to case.
char(offset,value)
True if the byte at offset is identical to value.
short(offset,value)
True if the 16-bit big-endian integer at offset is identical
to value.
int(offset,value)
True if the 32-bit big-endian integer at offset is identical
to value.
locale("string")
True if current locale matches string.
contains(offset,range,"string")
True if the bytes starting at offset for range bytes
contains string.
STRING CONSTANTS
String constants can be specified inside quotes ("") for strings
containing whitespace and angle brackets (<>) for hexadecimal
strings.
TYPE MATCHING AND PRIORITY
When CUPS needs to determine the MIME media type of a given file,
it checks every MIME media type defined in the .types files.
When two or more types match a given file, the type chosen will
depend on the type name and priority, with higher-priority types
being used over lower-priority ones. If the types have the same
priority, the type names are sorted alphanumerically in ascending
order and the first type is chosen.
For example, if two types "text/bar" and "text/foo" are defined
as matching the extension "doc", normally the type "text/bar"
will be chosen since its name is alphanumerically smaller than
"text/foo". However, if "text/foo" also defines a higher
priority than "text/bar", "text/foo" will be chosen instead.
/etc/cups - Typical CUPS configuration directory.
Define two MIME media types for raster data, with one being a
subset with higher priority:
application/vnd.cups-raster string(0,"RaSt") string(0,"tSaR") \
string(0,"RaS2") string(0,"2SaR") \
string(0,"RaS3") string(0,"3SaR")
image/pwg-raster string(0,"RaS2") + \
string(4,PwgRaster<00>) priority(150)
cups-files.conf(5), cupsd.conf(5), cupsd(8), cupsfilter(8),
mime.convs(5), CUPS Online Help (http://localhost:631/help)
Copyright © 2007-2019 by Apple Inc.
This page is part of the CUPS (a standards-based, open source
printing system) project. Information about the project can be
found at ⟨http://www.cups.org/⟩. If you have a bug report for
this manual page, see ⟨http://www.cups.org/⟩. This page was
obtained from the project's upstream Git repository
⟨https://github.com/apple/cups⟩ on 2024-06-14. (At that time,
the date of the most recent commit that was found in the
repository was 2023-10-27.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
26 April 2019 CUPS mime.types(5)
Pages that refer to this page: classes.conf(5), cupsd.conf(5), cups-files.conf(5), gitweb.conf(5), mime.convs(5), printers.conf(5), subscriptions.conf(5), cupsd(8)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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